VAF in Suppressor-Mediating Effect

Questions about the implementation and application of the PLS-SEM method, that are not related to the usage of the SmartPLS software.
Post Reply
JSILVA
PLS Junior User
Posts: 2
Joined: Tue Sep 08, 2015 3:08 pm
Real name and title: Javier Silva - Marketing Professor - IAE Business School - Buenos Aires

VAF in Suppressor-Mediating Effect

Post by JSILVA »

Hi,

I have two models with suppressor effects. Direct and Indirect effects are significants on 0,1%. A indirect path is negative (p23) in each model.
VAF is -17% and -44% respectively. How should I interpret this? Both cases are full-suppressor effect? Is the suppressor-effect with VAF -44% bigger than VAF -17?

Thank you in advance for your help
Javier
User avatar
Hengkov
PLS Super-Expert
Posts: 1599
Joined: Sun Apr 24, 2011 10:13 am
Real name and title: Hengky Latan
Location: AMQ, Indonesia
Contact:

Re: VAF in Suppressor-Mediating Effect

Post by Hengkov »

Hi,

Suppressor effects occur when there are signs that changes in the path coefficients. VAF value will usually be more than 100%. To conclude this, it may not be able to play a role mediating variables, so that a direct connection is stronger than mediation. So it concluded there is no mediation for both cases.
But if the direct and indirect effect has a negative sign, it can be concluded there is a partial mediation.

Best regards,
Post Reply